Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTOYOTA1996TERCEL DX, 4D SEDAN, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETHEORY AND OPERATIONENGINE CONTROLS - THEORY & OPERATIONCOMPUTERIZED ENGINE CONTROLSINPUT DEVICESPARK/NEUTRAL POSITION (PNP) SWITCH (A/T MODELS)
1996 Toyota Tercel DX, 4D Sedan, Automatic
Park/Neutral Position (PNP) Switch (A/T Models)
1996 Toyota Tercel DX, 4D Sedan, AutomaticSECTION Park/Neutral Position (PNP) Switch (A/T Models)
On some models, the PNP switch delivers an input signal to Engine Control Module (ECM), indicating gear position. The ECM may use input signal to control engine idle and fuel injection system.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.